Argon vs Nihonium
| Property | Ar Argon | Nh Nihonium |
|---|---|---|
| Atomic number | 18 | 113 |
| Symbol | Ar | Nh |
| Name | Argon | Nihonium |
| Category | noble-gas | post-transition-metal |
| Standard Atomic Weight | 39.948 u | 286 u |
| Period | 3 | 7 |
| Group | 18 | 13 |
| Block | p | p |
| Phase at STP | gas | solid |
| Electron configuration | [Ne]3s23p6 | [Rn] 5f14 6d10 7s2 7p1(predicted) |
| Oxidation states | [0] | N/A |
| Electronegativity (Pauling) | N/A | N/A |
| Electron affinity | -1 eV | 0.6 eV |
| Density | 1.7837 kg/m³ | 1.600000e+4 kg/m³ |
| Melting point | -189.35 °C | 426.85 °C |
| Boiling point | -185.85 °C | 1156.85 °C |
| Discovery year | 1894 | 2004 |